IEC 61757-2-2:20 16(E)定义了光纤传感器分布式温度测量的详细规范，也称为光纤分布式温度传感(DTS)。DTS包括使用拉曼散射、布里渊散射和瑞利散射效应。此外，基于拉曼散射和瑞利散射的测量仅用单端光纤配置执行。基于布里渊散射的测量用单端光纤或光纤环配置执行。可同时从两侧访问的技术（例如布里渊光学时域分析，BOTDA）在此被称为环路配置。IEC 61757-1:20 12中定义了光纤传感器的通用规范。IEC 61757的这一部分规定了最重要的DTS性能参数，并定义了确定这些参数的程序。除了性能参数组之外，还定义了附加参数列表，以支持测量规范及其相关测试程序的定义。这些附加参数的定义仅供参考，应包含在性能参数集中。定义了一个通用测试设置，其中可以通过一组测试收集所有参数。每个测量参数的具体测试在条款中描述。根据IEC 61757-2-2，根据用于测量这些参数的特定DTS仪器和测试设置，在第4条中描述和描述了该通用测试设置以及应记录的通用信息列表。附录A提供了空白性能参数表，用于记录给定DTS仪器和所选光学测试装置配置的性能参数值。附录B提供了可选确定点缺陷影响的指南。 关键词:光纤分布式温度传感（DTS） 本出版物应与IEC 61757-1:20 12一起阅读

IEC 61757-2-2:2016(E) defines detail specifications for distributed temperature measurement by a fibre optic sensor, also known as fibre optic distributed temperature sensing (DTS). DTS includes the use of Raman scattering, Brillouin scattering and Rayleigh scattering effects. In addition, Raman scattering and Rayleigh scattering based measurements are performed with a single-ended fibre configuration only. Brillouin scattering based measurements are performed with a single-ended fibre or fibre loop configuration. The technique accessible from both sides at same time (e. g. Brillouin optical time domain analysis, BOTDA) is referred to here as a loop configuration. Generic specifications for fibre optic sensors are defined in IEC 61757-1:2012. This part of IEC 61757 specifies the most important DTS performance parameters and defines the procedures for their determination. In addition to the group of performance parameters, a list of additional parameters has been defined to support the definition of the measurement specifications and their associated test procedures. The definitions of these additional parameters are provided for informational purposes and should be included with the sets of performance parameters. A general test setup is defined in which all parameters can be gathered through a set of tests. The specific tests are described within the clause for each measurement parameter. This general test setup is depicted and described in Clause 4 along with a list of general information that should be documented based upon the specific DTS instrument and test setup used to measure these parameters as per IEC 61757-2-2. Annex A provides a blank performance parameter table which should be used to record the performance parameter values for a given DTS instrument and chosen optical test setup configuration. Annex B provides guidelines for optional determination of point defect effects. Keywords: fibre optic distributed temperature sensing (DTS)

This publication is to be read in conjunction with IEC 61757-1:2012